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class="refentrytitle">GtkCellLayout</span></h2><p>GtkCellLayout — An interface for packing cells</p></td><td valign="top" align="right"></td></tr></table></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">#include <gtk/gtk.h> <a class="link" href="GtkCellLayout.html#GtkCellLayout-struct">GtkCellLayout</a>; <a class="link" href="GtkCellLayout.html#GtkCellLayoutIface">GtkCellLayoutIface</a>;void (<a class="link" href="GtkCellLayout.html#GtkCellLayoutDataFunc">*GtkCellLayoutDataFunc</a>) (<a class="link" href="GtkCellLayout.html" title="GtkCellLayout">GtkCellLayout</a> *cell_layout, <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <a class="link" href="GtkTreeModel.html" title="GtkTreeModel">GtkTreeModel</a> *tree_model, <a class="link" href="GtkTreeModel.html#GtkTreeIter">GtkTreeIter</a> *iter, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer">gpointer</a> data);void <a class="link" href="GtkCellLayout.html#gtk-cell-layout-pack-start">gtk_cell_layout_pack_start</a> (<a class="link" href="GtkCellLayout.html" title="GtkCellLayout">GtkCellLayout</a> *cell_layout, <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> expand);void <a class="link" href="GtkCellLayout.html#gtk-cell-layout-pack-end">gtk_cell_layout_pack_end</a> (<a class="link" href="GtkCellLayout.html" title="GtkCellLayout">GtkCellLayout</a> *cell_layout, <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> expand);<ahref="/usr/share/gtk-doc/html/glib/glib-Doubly-Linked-Lists.html#GList">GList</a>* <a class="link" href="GtkCellLayout.html#gtk-cell-layout-get-cells">gtk_cell_layout_get_cells</a> (<a class="link" href="GtkCellLayout.html" title="GtkCellLayout">GtkCellLayout</a> *cell_layout);void <a class="link" href="GtkCellLayout.html#gtk-cell-layout-reorder">gtk_cell_layout_reorder</a> (<a class="link" href="GtkCellLayout.html" title="GtkCellLayout">GtkCellLayout</a> *cell_layout, <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> position);void <a class="link" href="GtkCellLayout.html#gtk-cell-layout-clear">gtk_cell_layout_clear</a> (<a class="link" href="GtkCellLayout.html" title="GtkCellLayout">GtkCellLayout</a> *cell_layout);void <a class="link" href="GtkCellLayout.html#gtk-cell-layout-set-attributes">gtk_cell_layout_set_attributes</a> (<a class="link" href="GtkCellLayout.html" title="GtkCellLayout">GtkCellLayout</a> *cell_layout, <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, ...);void <a class="link" href="GtkCellLayout.html#gtk-cell-layout-add-attribute">gtk_cell_layout_add_attribute</a> (<a class="link" href="GtkCellLayout.html" title="GtkCellLayout">GtkCellLayout</a> *cell_layout, <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *attribute, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> column);void <a class="link" href="GtkCellLayout.html#gtk-cell-layout-set-cell-data-func">gtk_cell_layout_set_cell_data_func</a> (<a class="link" href="GtkCellLayout.html" title="GtkCellLayout">GtkCellLayout</a> *cell_layout, <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <a class="link" href="GtkCellLayout.html#GtkCellLayoutDataFunc">GtkCellLayoutDataFunc</a> func, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer">gpointer</a> func_data, <ahref="/usr/share/gtk-doc/html/glib/glib-Datasets.html#GDestroyNotify">GDestroyNotify</a> destroy);void <a class="link" href="GtkCellLayout.html#gtk-cell-layout-clear-attributes">gtk_cell_layout_clear_attributes</a> (<a class="link" href="GtkCellLayout.html" title="GtkCellLayout">GtkCellLayout</a> *cell_layout, <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell);</pre></div><div class="refsect1" lang="en"><a name="id3815680"></a><h2>Object Hierarchy</h2><pre class="synopsis"> GInterface +----GtkCellLayout</pre></div><div class="refsect1" lang="en"><a name="id3815704"></a><h2>Prerequisites</h2><p>GtkCellLayout requires <ahref="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a>.</p></div><div class="refsect1" lang="en"><a name="id3815726"></a><h2>Known Implementations</h2><p>GtkCellLayout is implemented by <a class="link" href="GtkTreeViewColumn.html" title="GtkTreeViewColumn">GtkTreeViewColumn</a>, <a class="link" href="GtkIconView.html" title="GtkIconView">GtkIconView</a>, <a class="link" href="GtkCellView.html" title="GtkCellView">GtkCellView</a>, <a class="link" href="GtkEntryCompletion.html" title="GtkEntryCompletion">GtkEntryCompletion</a>, <a class="link" href="GtkComboBox.html" title="GtkComboBox">GtkComboBox</a> and <a class="link" href="GtkComboBoxEntry.html" title="GtkComboBoxEntry">GtkComboBoxEntry</a>.</p></div><div class="refsect1" lang="en"><a name="id3815783"></a><h2>Description</h2><p><a class="link" href="GtkCellLayout.html" title="GtkCellLayout"><span class="type">GtkCellLayout</span></a> is an interface to be implemented by all objects whichwant to provide a <span class="type">GtkTreeViewColumn-like</span> API for packing cells, settingattributes and data funcs. </p><p>One of the notable features provided by implementations of GtkCellLayoutare <span class="emphasis"><em>attributes</em></span>. Attributes let you set the propertiesin flexible ways. They can just be set to constant values like regularproperties. But they can also be mapped to a column of the underlying tree model with <a class="link" href="GtkCellLayout.html#gtk-cell-layout-set-attributes"><code class="function">gtk_cell_layout_set_attributes()</code></a>, which means that the value of the attribute can change from cell to cell as they are rendered by the cell renderer. Finally, it is possible to specify a function with <a class="link" href="GtkCellLayout.html#gtk-cell-layout-set-cell-data-func"><code class="function">gtk_cell_layout_set_cell_data_func()</code></a> that is called to determine the value of the attribute for each cell that is rendered.</p><div class="refsect2" lang="en"><a name="GtkCellLayout-BUILDER-UI"></a><h3>GtkCellLayouts as GtkBuildable</h3><p>Implementations of GtkCellLayout which also implement the GtkBuildable interface (<a class="link" href="GtkCellView.html" title="GtkCellView"><span class="type">GtkCellView</span></a>, <a class="link" href="GtkIconView.html" title="GtkIconView"><span class="type">GtkIconView</span></a>, <a class="link" href="GtkComboBox.html" title="GtkComboBox"><span class="type">GtkComboBox</span></a>, <a class="link" href="GtkComboBoxEntry.html" title="GtkComboBoxEntry"><span class="type">GtkComboBoxEntry</span></a>, <a class="link" href="GtkEntryCompletion.html" title="GtkEntryCompletion"><span class="type">GtkEntryCompletion</span></a>, <a class="link" href="GtkTreeViewColumn.html" title="GtkTreeViewColumn"><span class="type">GtkTreeViewColumn</span></a>) accept GtkCellRenderer objectsas <child> elements in UI definitions. They support a custom <attributes> element for their children, which can contain multiple <attribute> elements. Each <attribute> element has a name attribute which specifies a property of the cell renderer; the content of the element is the attribute value.</p><div class="example"><a name="id3815933"></a><p class="title"><b>Example 20. A UI definition fragment specifying attributes</b></p><div class="example-contents"><pre class="programlisting"><object class="GtkCellView"> <child> <object class="GtkCellRendererText"/> <attributes> <attribute name="text">0</attribute> </attributes> </child>"</object></pre></div></div><br class="example-break"></div></div><div class="refsect1" lang="en"><a name="id3815951"></a><h2>Details</h2><div class="refsect2" lang="en"><a name="id3815961"></a><h3><a name="GtkCellLayout-struct"></a>GtkCellLayout</h3><a class="indexterm" name="id3815974"></a><pre class="programlisting">typedef struct _GtkCellLayout GtkCellLayout;</pre><p></p></div>⌨️ 快捷键说明
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